Microsoft Windows NTLM Spoofing Vulnerability

Vulnerability

A spoofing vulnerability in Windows NTLM has been identified. This vulnerability allows an attacker to manipulate NTLM authentication, potentially leading to unauthorized access or actions. It affects multiple Windows versions, including Windows 10, Windows 11, various Windows Server editions, and specific system architectures.

Impact

Exploitation of this vulnerability could lead to NTLM spoofing, allowing attackers to impersonate users or services, potentially gaining unauthorized access or privileges.

Remediation

Users can apply the security updates provided by Microsoft. These updates are available through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5050013, KB5050009, KB5049984, KB5050021, KB5050048, KB5050004, KB5050063, KB5049993, and KB5050049.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
1.3
exploitability
4.4
remediation
7.7
relevance
0.0
threat
0.0
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.